Assembly: System (in system.dll)
A permission to combine with the current permission. It must be of the same type as the current permission.
Return ValueAn IPermission that represents the union of the current permission and the specified permission.
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.